Judgement is inescapable in Richard Jones’s punishing version of Kafka’s novel. Miriam Buether’s striking design makes the audience a voyeuristic jury, ranged on benches in the queasily lit courtroom, with the accused toiling before us on a rolling travelator. It’s an intriguing representation of this existentialist abyss – the hopeless fight against unstoppable forces – but interest wanes over a relentless yet oddly unmoving two hours.